#   Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Paddle Device
"""

import os
import paddle

def device_count():
    """
    count available devices
    """
    gpu_useful = paddle.get_device().startswith("gpu")
    if gpu_useful:
        device_str = os.environ["CUDA_VISIBLE_DEVICES"]
        seg = device_str.split(",")
        return len(seg)
    else:
        return 0